Zhehai vinegar is a specialty of Zhehai Town, Huize County, Qujing City, Yunnan Province. The reputation of "Dongchuan soy sauce comes from sea vinegar" or "Huize soy sauce comes from sea vinegar" is widely spread among the people in Northeast Yunnan. Zhehai vinegar refers to Zhehai Zhou's vinegar, which is famous for its fresh color, fragrant taste, high concentration, no flowers and no deterioration after being left for a long time.

Vinegar is an indispensable condiment and health food in life. It has medicinal values ??for the human body such as thrombolysis, softening of blood vessels, anti-inflammatory and sterilization, lowering blood pressure, and aiding digestion. Zhehai vinegar, created by Zhou family from Zhehailaojie of the county, adopts the traditional craft process of ancestral secret recipes and has been passed down for more than 200 years. It is well-known in Dongchuan, Huize and surrounding counties and cities. Huize County Rongpu Vinegar Factory is located in Zhehai Village Committee, Zhehai Town, Huize County. It is a vinegar factory with relatively mature technology and good development potential within the jurisdiction of Zhehai Town. In 2009, the "Lilianhao" trademark was registered by the National Trademark Office. , has obtained the exclusive right to trademark and has successively registered and obtained a "Business License" and "Health License" and passed the municipal "Quality Inspection Qualification" and other legal qualifications. The vinegar brewed from local mountain spring water is brown in color, shiny and sour. Pleasant and delicious.

In 2011, the Rongpu Vinegar Factory was listed as a county-level science popularization project by the County Association for Science and Technology for implementation. With the help of the County Association for Science and Technology, the original hardware facilities were rationally laid out in accordance with the requirements of the production process. The fermentation tanks, stoves, and storage rooms have been renovated to improve sanitary conditions and increase production efficiency. Under the guidance of the County Association for Science and Technology, we strengthened product development and improved product quality, and successively developed "Lillian Hao" mature vinegar, "Lillian Hao" pepper vinegar, "Lillian Hao" double-ingredient vinegar, and "Lillian Hao" special vinegar. As well as a series of products made with "Lilianhao" mature vinegar, including garlic, ginger slices, spicy millet, garlic sprouts, etc., which have been well received by all walks of life. It uses science popularization funds to develop product packaging. The newly developed packaging meets the requirements of national standards and meets the packaging needs of a series of products, which greatly improves the product quality. In 2012 alone, it sold more than 5,000 boxes of gift boxes and more than 160,000 bottles of bulk vinegar. It has achieved achieved better economic benefits.